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TI-2003-00335 Aliases CVE-2003-0356GHSA-mxvh-95qr-ww4v

Multiple off-by-one vulnerabilities in Ethereal 0.9.11 and earlier allow remote attackers…

Priority MEDIUM 54CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

Summary

Multiple off-by-one vulnerabilities in Ethereal 0.9.11 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via the (1) AIM, (2) GIOP Gryphon, (3) OSPF, (4) PPTP, (5) Quake, (6) Quake2, (7) Quake3, (8) Rsync, (9) SMB, (10) SMPP, and (11) TSP dissectors, which do not properly use the tvb_get_nstringz and tvb_get_nstringz0 functions.

Why it matters now

EPSS 0.09574 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ethereal:ethereal:*:*:*:*:*:*:*:*before 0.9.12VulnerableEthereal
  • cpe:2.3:a:ethereal:ethereal:*:*:*:*:*:*:*:* Versions before 0.9.12 Vulnerable ·Ethereal

Remediation

Red Hat 2 advisories

  • RHSA-2003:077 Released 2003-07-08 · Red Hat rating Moderate
    ethereal security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Enterprise Linux ES version 2.1
    • Red Hat Enterprise Linux WS version 2.1
    • Red Hat Linux Advanced Workstation 2.1
  • RHSA-2003:203 Released 2003-07-03 · Red Hat rating Moderate
    : Updated Ethereal packages fix security issues
    • Red Hat Linux 7.2
    • Red Hat Linux 7.3
    • Red Hat Linux 8.0
    • Red Hat Linux 9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2003:077
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2003:077
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2003:077
Red Hat Linux 7.2Fixed RHSA-2003:203
Red Hat Linux 7.3Fixed RHSA-2003:203
Red Hat Linux 8.0Fixed RHSA-2003:203
Red Hat Linux 9Fixed RHSA-2003:203
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2003:077

Timeline

  1. 2026-10-02 Threatist record created from CVE-2003-0356
  2. 2026-10-03 Alias added: GHSA-mxvh-95qr-ww4v

References

Patch 2

Advisory 3

Other 1

  • TI-2004-00334 The dissect_attribute_value_pairs function in packet-radius.c for Ethereal 0.8.13 to… CVSS 3.1HIGH 7.5
  • TI-2002-00386 SMB dissector in Ethereal 0.9.3 and earlier allows remote attackers to cause a denial of… CVSS 3.1HIGH 7.5
  • TI-2003-00919 The Q.931 dissector in Ethereal before 0.10.0, and Tethereal, allows remote attackers to… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences